YARN-8092. Expose Node Attributes info via RM nodes REST API. Contributed by Weiwei Yang.

hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/nodemanager/NodeInfo.java

@@ -32,6 +32,7 @@
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.ContainerState;
 import org.apache.hadoop.yarn.api.records.ContainerStatus;
+import org.apache.hadoop.yarn.api.records.NodeAttribute;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.NodeState;
 import org.apache.hadoop.yarn.api.records.Resource;
@@ -219,6 +220,18 @@ public Map<String, Long> getAllocationTagsWithCount() {
       return null;
     }
 
+
+    @Override
+    public void setNodeAttributes(String prefix,
+        Set<NodeAttribute> nodeAttributes) {
+
+    }
+
+    @Override
+    public Map<String, Set<NodeAttribute>> getAllNodeAttributes() {
+      return null;
+    }
+
     @Override
     public RMContext getRMContext() {
       return null;

hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/scheduler/RMNodeWrapper.java

@@ -24,6 +24,7 @@
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.Container;
 import org.apache.hadoop.yarn.api.records.ContainerId;
+import org.apache.hadoop.yarn.api.records.NodeAttribute;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.NodeState;
 import org.apache.hadoop.yarn.api.records.Resource;
@@ -206,6 +207,17 @@ public Integer getDecommissioningTimeout() {
   public Map<String, Long> getAllocationTagsWithCount() {
     return node.getAllocationTagsWithCount();
   }
+  
+  @Override
+  public void setNodeAttributes(String prefix,
+      Set<NodeAttribute> nodeAttributes) {
+    node.setNodeAttributes(prefix, nodeAttributes);
+  }
+
+  @Override
+  public Map<String, Set<NodeAttribute>> getAllNodeAttributes() {
+    return node.getAllNodeAttributes();
+  }
 
   @Override
   public RMContext getRMContext() {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceTrackerService.java

@@ -673,6 +673,10 @@ public NodeHeartbeatResponse nodeHeartbeat(NodeHeartbeatRequest request)
         this.rmContext.getNodeAttributesManager()
             .replaceNodeAttributes(NodeAttribute.PREFIX_DISTRIBUTED,
                 ImmutableMap.of(nodeId.getHost(), nodeAttributes));
+
+        // Update node attributes to RMNode
+        rmNode.setNodeAttributes(NodeAttribute.PREFIX_DISTRIBUTED,
+            nodeAttributes);
       }
     }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmnode/RMNode.java

@@ -31,6 +31,7 @@
 import org.apache.hadoop.yarn.api.records.NodeState;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceUtilization;
+import org.apache.hadoop.yarn.api.records.NodeAttribute;
 import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatResponse;
 import org.apache.hadoop.yarn.server.api.records.OpportunisticContainersStatus;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
@@ -195,4 +196,16 @@ public interface RMNode {
    * @return the RM context associated with this RM node.
    */
   RMContext getRMContext();
+
+ /**
+   * Sets node attributes per prefix.
+   * @param prefix node attribute prefix
+   * @param nodeAttributes node attributes
+   */
+  void setNodeAttributes(String prefix, Set<NodeAttribute> nodeAttributes);
+
+  /**
+   * @return all node attributes grouped by their prefix as a map.
+   */
+  Map<String, Set<NodeAttribute>> getAllNodeAttributes();
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmnode/RMNodeImpl.java

@@ -50,6 +50,7 @@
 import org.apache.hadoop.yarn.api.records.ContainerStatus;
 import org.apache.hadoop.yarn.api.records.ContainerUpdateType;
 import org.apache.hadoop.yarn.api.records.ExecutionType;
+import org.apache.hadoop.yarn.api.records.NodeAttribute;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.NodeState;
 import org.apache.hadoop.yarn.api.records.Resource;
@@ -185,6 +186,9 @@ public class RMNodeImpl implements RMNode, EventHandler<RMNodeEvent> {
   private NodeHeartbeatResponse latestNodeHeartBeatResponse = recordFactory
       .newRecordInstance(NodeHeartbeatResponse.class);
 
+  // Node attributes, store by prefix
+  private Map<String, Set<NodeAttribute>> nodeAttributes = new HashMap<>();
+
   private static final StateMachineFactory<RMNodeImpl,
                                            NodeState,
                                            RMNodeEventType,
@@ -1546,4 +1550,15 @@ public Map<String, Long> getAllocationTagsWithCount() {
   public RMContext getRMContext() {
     return this.context;
   }
+
+  @Override
+  public void setNodeAttributes(String prefix,
+      Set<NodeAttribute> nodeAttributeSet) {
+    this.nodeAttributes.put(prefix, nodeAttributeSet);
+  }
+
+  @Override
+  public Map<String, Set<NodeAttribute>> getAllNodeAttributes() {
+    return this.nodeAttributes;
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/NodeAttributeInfo.java

@@ -0,0 +1,65 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import org.apache.hadoop.yarn.api.records.NodeAttribute;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+/**
+ * DAO for node an attribute record.
+ */
+@XmlRootElement(name = "nodeAttributeInfo")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class NodeAttributeInfo {
+
+  private String prefix;
+  private String name;
+  private String type;
+  private String value;
+
+  public NodeAttributeInfo() {
+    // JAXB needs this
+  }
+
+  public NodeAttributeInfo(NodeAttribute nodeAttribute) {
+    this.prefix = nodeAttribute.getAttributePrefix();
+    this.name = nodeAttribute.getAttributeName();
+    this.type = nodeAttribute.getAttributeType().toString();
+    this.value = nodeAttribute.getAttributeValue();
+  }
+
+  public String getPrefix() {
+    return prefix;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public String getType() {
+    return type;
+  }
+
+  public String getValue() {
+    return value;
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/NodeAttributesInfo.java

@@ -0,0 +1,49 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+import java.util.ArrayList;
+
+/**
+ * DAO for a list of node attributes info.
+ */
+@XmlRootElement(name = "nodeAttributesInfo")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class NodeAttributesInfo {
+
+  @XmlElement(name = "nodeAttributeInfo")
+  private ArrayList<NodeAttributeInfo> nodeAttributesInfo =
+      new ArrayList<>();
+
+  public NodeAttributesInfo() {
+    // JAXB needs this
+  }
+
+  public void addNodeAttributeInfo(NodeAttributeInfo attributeInfo) {
+    this.nodeAttributesInfo.add(attributeInfo);
+  }
+
+  public ArrayList<NodeAttributeInfo> getNodeAttributesInfo() {
+    return nodeAttributesInfo;
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/NodeInfo.java

@@ -27,6 +27,7 @@
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.apache.hadoop.yarn.api.records.NodeAttribute;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.NodeState;
 import org.apache.hadoop.yarn.server.api.records.OpportunisticContainersStatus;
@@ -62,6 +63,7 @@ public class NodeInfo {
   protected ResourceUtilizationInfo resourceUtilization;
   protected ResourceInfo usedResource;
   protected ResourceInfo availableResource;
+  protected NodeAttributesInfo nodeAttributesInfo;
 
   public NodeInfo() {
   } // JAXB needs this
@@ -113,6 +115,19 @@ public NodeInfo(RMNode ni, ResourceScheduler sched) {
       Collections.sort(nodeLabels);
     }
 
+    // add attributes
+    Map<String, Set<NodeAttribute>> nodeAttributes =
+        ni.getAllNodeAttributes();
+    nodeAttributesInfo = new NodeAttributesInfo();
+    if (nodeAttributes != null) {
+      for (Set<NodeAttribute> attrs : nodeAttributes.values()) {
+        for (NodeAttribute attribute : attrs) {
+          NodeAttributeInfo info = new NodeAttributeInfo(attribute);
+          this.nodeAttributesInfo.addNodeAttributeInfo(info);
+        }
+      }
+    }
+
     // add allocation tags
     allocationTags = new AllocationTagsInfo();
     Map<String, Long> allocationTagsInfo = ni.getAllocationTagsWithCount();

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/MockNodes.java

@@ -28,6 +28,7 @@
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.Container;
 import org.apache.hadoop.yarn.api.records.ContainerId;
+import org.apache.hadoop.yarn.api.records.NodeAttribute;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.NodeState;
 import org.apache.hadoop.yarn.api.records.Resource;
@@ -284,6 +285,16 @@ public Integer getDecommissioningTimeout() {
     public Map<String, Long> getAllocationTagsWithCount() {
       return null;
     }
+    
+    public void setNodeAttributes(String prefix,
+        Set<NodeAttribute> nodeAttributes) {
+
+    }
+
+    @Override
+    public Map<String, Set<NodeAttribute>> getAllNodeAttributes() {
+      return null;
+    }
 
     @Override
     public RMContext getRMContext() {